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Top Questions People Ask About Pandas, NumPy, Matplotlib & Scikit-learn — Answered!

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 Whether you're a beginner or brushing up on your skills, these are the real-world questions Python learners ask most about key libraries in data science. Let’s dive in! 🐍 🐼 Pandas: Data Manipulation Made Easy 1. How do I handle missing data in a DataFrame? df.fillna( 0 ) # Replace NaNs with 0 df.dropna() # Remove rows with NaNs df.isna(). sum () # Count missing values per column 2. How can I merge or join two DataFrames? pd.merge(df1, df2, on= 'id' , how= 'inner' ) # inner, left, right, outer 3. What is the difference between loc[] and iloc[] ? loc[] uses labels (e.g., column names) iloc[] uses integer positions df.loc[ 0 , 'name' ] # label-based df.iloc[ 0 , 1 ] # index-based 4. How do I group data and perform aggregation? df.groupby( 'category' )[ 'sales' ]. sum () 5. How can I convert a column to datetime format? df[ 'date' ] = pd.to_datetime(df[ 'date' ]) ...
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Exclusive Ideas to Prepare Resume for IT-software Jobs

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Choosing the correct resume template is the first step to start. Then, the way of showing experience matters. Here are ideas to prepare a resume for all experience levels.


Best resume templates of all experiences levels. Nice to use for Software Engineers.


The resume is the main document to showcase talent. Ensure that you have taken care while writing you used Plain English and checked for grammar errors.

Better resume in four steps

  • Classify a Resume
  • Two page resume is idea for all level
  • Template for freshers
  • Template for experienced

1. Classify Your Resume.

  • 0-1 Year experience.
  • 1- 5 Year experience.
  • 5-10 Year experience.
  • 10-20 Years experience.

2. A Two-page Resume is ideal for all Jobs.

  • A big question is how long a resume should be.
  • A two-page resume is ideal for all experiences - If you just came from a college or an experienced one.

3. Template for Fresher Software Developers.

  • I found some people give address, Date of birth, and four years of Degree marks - essentially No Need, just give your qualification and percentage.
  • Add college projects, extra-curricular activities, and internships.
  • Ensure E-mail and the Mobile number present on top of the Resume.
  • Here is entry level resume

4. Template for Senior Software Developers.

  • Write project details on the second page - technical skills and a little description would make sense.
  • Company names, Education, and Achievements ensure to give on the first page.
  • Here is an experienced Software Engineer Sample Resume

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